#VU1098 Cross-site scripting in Cisco Email Security Appliance - CVE-2016-1423

Vulnerability identifier: #VU1098

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-1423

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Email Security Appliance
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Cisco Systems, Inc

Description
The disclosed vulnerability allows a remote unauthenticated user to perform cross-site scripting (XSS) attacks.
The vulnerability is caused by incorrect filtration of input data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim’s browser in security context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks

Mitigation
Update to version 9.1.1-038, 9.7.2-047.

Vulnerable software versions

Cisco Email Security Appliance: 8.0.2 069 - 9.7.2 047

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161026-esa4

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.